Sudoku craze and pairs the addictive logic-based game with a spectacularly handy format.
Now that\'s what we call a smart calculation Medium to Hard Sudoku Puzzle Book.
Filled with 300 grids of varying difficulty, our Sudoku is perfect for strategizing on the bus, train or Plane.
Sudoku craze and pairs the addictive logic-based game with a spectacularly handy format